Creating the Viral Spicy Salmon Sushi Bake is a straightforward process when you follow these steps:

1. Preheat your oven to 350°F (175°C).
2. Rinse the sushi rice: Place the sushi rice in a fine-mesh strainer and rinse until the water runs clear.
3. Cook the rice: In a medium saucepan, combine the rinsed rice and 2 ½ cups of water. Bring to a boil, then lower the heat, cover, and simmer for 15-20 minutes until the rice is tender and the water is absorbed.
4. Prepare the salmon: While the rice is cooking, preheat a skillet over medium heat. Season the salmon fillet with salt and pepper, and cook for about 4-5 minutes on each side, or until it’s fully cooked.
5. Flake the salmon: Once cooked, remove the salmon from the skillet and let it cool for a moment. Use a fork to flake the salmon into bite-sized pieces.
6. Make the sauce: In a large bowl, combine mayonnaise, sriracha sauce, soy sauce, sesame oil, and rice vinegar. Mix until well combined.
7. Combine: Add the flaked salmon to the sauce mixture, stirring gently to coat the salmon evenly.
8. Mix rice and salmon: Add the cooked sushi rice to the salmon mixture, folding everything together until fully incorporated.
9. Transfer to a baking dish: Spread the rice and salmon mixture evenly into a greased 9×13 inch (or similar-sized) baking dish.
10. Prepare the topping: In a small bowl, combine the panko breadcrumbs and a pinch of salt. Sprinkle evenly over the rice and salmon mixture.
11. Bake: Place the baking dish in the oven and bake for about 20-25 minutes, or until the top is golden brown and crispy.
12. Garnish: Remove from the oven and let cool for a few minutes. Top with chopped scallions and furikake seasoning if desired.

These steps will guide you through the process of making this amazing Viral Spicy Salmon Sushi Bake. Prepare to indulge in deliciousness!